Full list of all 75 The Elder Scrolls V: Skyrim achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 3 DLC packs containing 25 achievements.
Join the Companions
Complete "Elder Knowledge"
Complete 10 side quests
Complete "Alduin's Wall"
Complete "Diplomatic Immunity"
Read 50 Skill Books
Learn all three words of a shout
Buy a house
Complete "The Way of the Voice"
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Clear 50 dungeons
Absorb 20 dragon souls
Complete "Hail Sithis!"
Complete "Bound Until Death"
Returned the Thieves Guild to its former glory
Successfully persuade, bribe, and intimidate
Reach Level 25
Make a smithed item, an enchanted item, and a potion
Discover 100 Locations
Complete 50 Misc Objectives
Get married
Join the Dark Brotherhood
Acquire a Daedric Artifact
Get a skill to 100
Have 100,000 gold
Complete "Darkness Returns"
Reach Level 10
Reach Level 5
Join the Thieves Guild
Absorb a dragon soul
Complete "Bleak Falls Barrow"
Join the College of Winterhold
Select a Standing Stone blessing
Complete "Unbound"
Complete "The Fallen"
Complete "Dragonslayer"
Become a member of the Circle
Complete "Glory of the Dead"
Join the Stormcloaks or the Imperial Army
Capture Fort Sungard or Fort Greenwall
Capture Solitude or Windhelm
Chop wood, mine ore, and cook food
Pick 50 locks and 50 pockets
Find 13 Standing Stones
Escape from jail
Bounty of 1000 gold in all nine holds
Collect 15 Daedric Artifacts
Learn 20 shouts
Reach Level 50
Arrive on Solstheim
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Complete "At the Summit of Apocrypha"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Tame and ride 5 dragons
Own a house in Raven Rock
Discover 30 locations on the island of Solstheim
Complete "Awakening"
Complete "Beyond Death"
Complete "Kindred Judgment"
Complete "Lost to the Ages"
Learn all three words of Soul Tear
Use the special power of Auriel's Bow
Acquire 11 werewolf perks
Acquire 11 vampire perks
Change your face
Defeat a Legendary Dragon
Adopt a child
Build three wings on a house
Buy a plot of land
Buy three plots of land
Build three houses